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The first thing to try would be to right-click on lifecam.exe and run it as administrator. If that does not resolve the problem. Then open Device manager. Start->Run-> In the run box type in devmgmt.msc and hit enter. See if the camera has been detected under imaging devices and let me know

Visit the Logitech website and browse the photo gallery for your model and click on the photo to navigate to the support page.Note - Older models on page 2 - look for the link at the bottom right of page 1 and click on it "Still can't find your product?"

http://www.logitech.com/index.cfm/405/&cl=us,en?prodcrid=405

In addition to the Logitech installer you will need to run the support software - Microsoft DirectX . This comes pre-loaded on most Windows computers but has to be updated - I am currently on version 11To start the DirectX Diagnostic Tool, click Start, click Run, type dxdiag in the Open box, and then click OK.

Procedure to re-install Logitech software Close all programs while uninstalling - downloading and uploading software Disconnect your webcam Uninstall the current webcam software on your computer Restart computer Download the Installation package from Logitech Run the installer and choose your options during the installation - You may not want Logitech Chat but the Desktop icon for the webcam toolbar is a must.Connect your webcam when prompted.

You also have Kasperkey ?The error message 'CEC-MAIN.exe' is connected with the Camera Assistant Software, You are unable to run the camera software because your KIS (Kasperkey Internet Security is blocking it by keeping "CEC-MAIN.exe" in the
'Untrusted File'.

Resolution:-

1) Launch your web browser

2) In the Notification Area (Down by your clock - Right click on the KIS icon and select "Pause Protection" > select "Resume manually"

If you have successfully run this cam with a different OS, try running it in Compatibility Mode

Right click on the webcam icon on your desktop or from 'All Programs' - select 'Properties'Select the Compatibility tabSelect Compatibility ModeUse the dropbox to show the OSClick OKRestart your computer

"I receive an error message" (sic) What is it exactly, what happens? Also Install everything as Administrator, ALSO set the setup/install program's .exe in, Compatibility Mode for XP SP2. and Run the actual program's .exe as Administrator, too. Ensure all network settings are correct too.

Warning
You may temporarily lose functionality of some services when you follow
these steps. When you restore the settings, the services are restored.
However, when you restore the functionality, the original error message
or behavior may return.
Step 1: Start the System Configuration Utility
loadTOCNode(4, 'resolution');
To start the System Configuration Utility in Windows XP, click Start, type
msconfig
in the Start box, and then press ENTER.
Step 2: Turn off programs and services
loadTOCNode(4, 'resolution');
To do this, follow these steps:

On the General tab, click Selective Startup, and then click OK.

Under Selective Startup, click to clear the following check boxes:

Process SYSTEM.INI File

Process WIN.INI File

Load Startup Items

Click the Services tab, click to select the Hide All Microsoft Services check box, and then click Disable All.

Normal
0
Try disconnecting the Camera from the USB port and reinstall
the software program. When the program asks you to connect the
camera to the USB port, do so and it should work.
Hope this helps. Bud